中国科技核心期刊
中国指挥与控制学会会刊
军事装备类重点期刊
中国指挥与控制学会会刊
军事装备类重点期刊
中国指挥与控制学会会刊
军事装备类重点期刊
In response to the problem of efficient integration of space information support and overseas anti-terrorism operational command system, the overseas anti-terrorism operations are divided into three categories: large-scale anti-terrorism warfare, swift strike and rescue, and normalized continuous defense respectively, and its command system is described by “V-5” views method. From the perspectives of participating forces, command institutions, command relations, structural styles and information flow views, the main contents and structure of the overseas anti-terrorism operational command system supported by space information are described, and its architecture is constructed. It laid a foundation for building and smoothing the operational mechanism of overseas anti-terrorism operations command system, simulating, evaluating and optimizing the structure of overseas anti-terrorism operations command system.
Excises, Directing, Adjusting and Control (EDAC) is one of the indispensable links of space excises, it runs through the whole process of training planning, implementation and summary. Taking the foreign military space exercises as a reference, this paper analyzes the process of EDAC, analyzed the characteristics, and constructes an EDAC system frame, which is composed of functional requirements analysis, organizational structure design and support technology analysis. The research can provide support for improving the ability of space excise directing, adjusting and control.
Under the condition of networked coordinated air defense, the "virtual fire unit" is formed to fight against incoming targets. According to the missile launching area and the relationship of damage area, to intercept the target suitability judgment, in full consideration of missile single-shot kill probability, relay guidance constraints and guidance handover probability of success on the basis of the given target distribution optimization matching model, and the optimized matching model simulation, simulation results show the validity of the model and algorithm, can provide basis for decision-making of the commander.
Take-off sliding distance is an important index to evaluate take-off performance. Due to the decrease of air density and engine available thrust, the take-off sliding distance of plateau airport is quite different from that of plain airport. The calculation model of the take-off sliding distance of a certain type of aircraft plateau airport is constructed. Based on the Matlab/Simulink platform, the lift coefficient and the drag coefficient of the aircraft and the available thrust model of the engine are established, and the calculation block diagram of the take-off sliding distance is set up. Comparing the calculation results with the flight manual data, the validity of the calculation model is verified, and the reason for the calculation error is analyzed. The relationship curves of altitude, take-off quality, wind speed, lift-off angle of attack, temperature engine working state and take-off run distance are given. The validation shows that the model established in this paper has high accuracy and practical value. The analysis results can provide reference for actual flight.
With the development of deep learning, BiLSTM-CRF model are widely used in combat documents and military named entity recognition. This paper proposes a method based on CNN-BiLSTM-CRF for identifying the named entity of combat documents. In this paper, the character-level feature is extracted by convolutional neural network (CNN). Then we have stitched character vectors and word vectors and part-of-speech(POS) vectors together. At the same time, we analyze the impact of different annotations on the performance of the models. A labeling strategy of fine classification is proposed. Finally, the result has shown that, the performance of our method is better than others without relying on artificial features. And the labeling strategy of fine classification is helpful for the expression of features.
In order to win the favor of users and improve the availability of products during the warranty period, it is a common strategy for manufacturers to provide preventive maintenance for some expensive products. On the basis of the current warranty service, how to meet the customer's requirements for product warranty cost and availability during the warranty period more closely and practically is a problem that enterprises must consider. Based on the existing literature and considering the actual situation of enterprises and customers, the time constraint of preventive maintenance is proposed, and the product availability during the warranty period is taken as the research object. Under incomplete preventive maintenance strategy, a two-dimensional product availability model with time constraints is established to determine the preventive maintenance strategy with optimal availability. The validity of the model is verified by an example, which provides a basis for manufacturers to make two-dimensional warranty service decisions.
The POL support network model is established by deeply analyzing the POL support system,and the statistical feature has been calculated and failure process simulation is carried out. Results show that the POL support network has more obvious characteristics of small world and scale-free feature, the failure process of strategy attack based on node degree and node betweenness are very close,and strategy attack is significantly more destructive than random attack.
For describing the dynamic RCS fluctuant characteristics and radar scattering characteristics, evaluates the stealth effect of ship target on sea, on the basic of get outfield dynamic 360° omni-directional RCS data, uses χ2 distribution model, log-normal distribution model to fit RCS fluctuations distribution characteristics of ship target, and the method of K-S is used for goodness-of-fit test. The results verify that under the 15GHz measurement frequency, 360° omni-directional RCS data of the ship deferred to the χ2 distribution model, log-normal distribution model at the sometime, the fit effect of χ2 distribution model has the better precision the further more. The research method and result of this article can be used for research RCS distribution characteristics of other electrically large objects on sea, afford theory brace for stealth design and evaluation to warship
According to the characteristics of the Low altitude Slow speed and Small Target(LSS-target), this paper studies the radar signal processing of the implementation process and the key algorithms, mainly elaborated the strong clutter suppression, adaptive constant false alarm detection(C)FAR and single pulse angle measuring algorithm, then simulation verifies the function of the signal processing algorithm by loading radar measured data, the results show that the algorithm can suppress clutter interference effectively, and detect LSS-target successfully under complex background.
The research of target recognition algorithm is an important content of radar reconnaissance equipment development, modeling and simulation. Based on the modeling requirements of the combat plan simulation deduction, the overall operation flow of the radar reconnaissance equipment model is analyzed. The target recognition algorithms based on radar intelligence database and radar characteristic parameters are proposed. In the target recognition algorithm based on radar intelligence database, the membership degree model of radar signal is established by synthetically analyzing the membership degree of radio frequency, repetition frequency and pulse width of radar signal. In the target recognition algorithm based on radar characteristic parameters, the corresponding relationship between radar type and threat level is proposed. Considering the effects of radar signal repetition frequency, azimuth, pulse width and radio frequency and their changes on the radar threat degree, a radar reconnaissance target threat assessment model is established, and the corresponding method of radar threat degree to threat level is proposed. The effectiveness and correctness of the target recognition algorithm are proved by the practical application in the combat plan simulation deduction of the naval battle field.
This paper is mainly focused on the study of the dependence relationship among SoS(system of system) capabilitiesand an activity-based system capability modeling method is proposed, and a conceptual model of system capability is established.After developing the activity network, the method of analysis of the capability dependence of activity loop is put forward.In order to determine the hierarchical relationships between the capabilities, the competency dependencies should be classified and then comparisons between the capability criticality of the same level are implemented.
Aiming at the difficulty of manual optimization of the replenishment training program in military training, a method of planning intelligent optimization based on evolutionary particle swarm optimization is proposed. Based on the particle swarm optimization algorithm, this method introduces the bio-competition mechanism in the genetic algorithm, introduces the survival of the fittest algorithm of the biological individual, and jumps out the local optimal trap by eliminating the low-divided individuals and breeding the high-divided individuals, so as to quickly obtain the global maximum. Excellent individual, and design the entropy weight ideal point method to calculate the individual's comprehensive score results, and obtain the global optimal solution. The simulation results show that the evolutionary particle swarm optimization algorithm has better convergence and higher computational efficiency than the standard particle swarm optimization algorithm, quantum particle swarm optimization algorithm and genetic algorithm, and can effectively solve the intelligent optimization problem of the replenishment training program.
Aiming at the difficulty of optimizing the dynamic allocation between forces, firepower and targets in the joint firepower mission planning, an intelligent optimization algorithm based on competitive leapfrog is designed and introduced into the joint firepower mission planning problem. Based on the standard frog leaping algorithm, the competitive frog leaping algorithm introduces the end-of-life and survival of the fittest mechanism of genetic algorithm, designs the natural life and elimination coefficient, and makes the optimal individual after multiple generations of iteration quickly approach the global optimal, and then passes the entropy weight method and ideal. The point method is combined with the comprehensive score of the joint firepower mission planning. The simulation results show that the competitive leapfrog algorithm can not only obtain the optimal solution of joint firepower mission planning in effective time, but the optimization speed and convergence algebra are better than the standard leapfrog algorithm and standard genetic algorithm.
The traditional logistic support model of our army can not meet the needs of military's current strategic transformation. The establishment of the military logistics distribution center can effectively solve the shortcomings of our military's existing logistics model. The reasonable location of the military logistics distribution center will greatly improve the accuracy, timeliness and effectiveness of military logistics distribution. This paper analyzes the research status of the location problem of logistics distribution center at home and abroad. Combining with the actual situation of military logistics, this paper puts forward a new research direction on the location of military logistics distribution center based on the shortcomings of the traditional model.
Aiming at the difficulty of making comprehensive evaluation quantitative analysis and evaluation criteria for joint combat firepower mission planning, a fusion scoring algorithm based on expert scoring method and entropy weight method is proposed. Through the analytic hierarchy process, the subjective and objective evaluation indicators of the joint firepower mission planning are sorted out, the evaluation index is obtained by constructing the mathematical model and the expert scoring method, the entropy weight is obtained by the entropy weight method, and then the comprehensive score is calculated, and the method is verified by simulation experiments. The simulation results show that the method can quickly realize the comprehensive evaluation of the joint combat firepower mission planning, and take into account the subjective decision-making tendency of the commander’s temporary command. Compared with the current joint firepower mission planning comprehensive assessment method, it has obvious advantages.
In the joint environment, a joint mission thread (JMT) can be utilized to test and evaluate systems, and decomposed at the mission, task and function levels to create operational effectiveness measures. This paper analyzes a JMT measure framework based on the capability definition, decomposes JMTs to testable measures at the mission and task level, and devises an intelligent measures generation platform according to JMT decomposition. The JMT measure framework produces measures of mission effectiveness, task performance and system attributes, with an emphasis on decomposing mission and task to generate measures. In addition, the rough set-neural network method is adopted to study and train sample sets of mapping relationships contained in the matrices, with purpose to enhance the efficiency of measures generation and achieve the intelligent effect.
To meeting aircraft carrier force construction requirements and operational test generation mode, basis on equipment test reform practice, the mission, constitution of aircraft carrier and characteristic, effect of test were systematically analyzed. The implement strategy and planning of operational test was proposed, including indicator system, typical scenario and test item. On account of guarantee capability, the joint test environment construction methods were put forward, which refer to method and technical framework. And by means of comprehensive assessment method, five type assessment modes were designed. The research provides theoretical supports for aircraft carrier operational test top design and innovation research.
In order to improve the design performance of infrared missile guidance system, an estimation algorithm of target maneuver is proposed. The method uses infrared seeker angle measurement and flight mission information,through the measurement information conversion,realizes the estimation of target maneuver information by Kalman filter. The Simulation results show that the method is easy to implement and has high estimation accuracy,which can meet the design requirements of infrared guidance.
In order to achieve the requirements of low cost, miniaturization and high integration of UAV flight control unit, an integrated implementation scheme based on STM32F427 microprocessor and MEMS sensor is proposed. According to the design requirements, the overall scheme of the system and the hardware implementation of master module are given in detail. Finally, the system functions are verified in the laboratory. It shows that the function module of the plan is reasonable in organization and easy to design, and has strong engineering applicability.
When multi-radar emitters are jammed by radar jammer simultaneously, parts of the radar pulses cannot be jammed and the jamming effect descends consequently. The reason that why parts of the radar pulses cannot be jammed is analyzed based electromagnetism compatibility management, jamming resources management and the radar emitter’s characteristics. The multi-targets jamming efficiency is simulated and calculated from the view of the jamming time occupancy, which will provide gist for the jamming decision-making and jamming efficiency evaluation.
In the process of military command, man-machine interaction is a two-way information exchange between information equipment and the commander. An natural and efficient man-machine interaction technology is an important means to ensure acquiring accurate perception of battlefield situation and accurate operation of battle instructions. This paper summarizes the development and future trend of multi-modal military command and control system based on the important relationship between man-machine interaction technology and military command and control system, introduces the development of military command and control system, and points out that multi-modal man-machine interaction technology is the development trend of future military command and control system.
The rapid development of information technology has brought information explosion problems. In order to effectively solve the problem of accurate service of military information, this paper firstly analyzes the current feasible solutions both inside and outside the military, and carries out detailed technical feasibility analysis from the aspects of user modeling technology, object modeling technology and recommendation algorithm. Then, according to the characteristics of military users, a military text information intelligent recommendation technology based on ISM (Interpretative Structural Modeling Method) is proposed. The architecture of the recommendation system is designed based on the idea of layering. Finally, taking the military text recommendation of "desert storm" of the US army as an example, the hierarchical model of military user roles is constructed to realize intelligent recommendation of intelligence information and solve the "cold start" problem of new user recommendation. The experimental results verify the proposed intelligent recommendation algorithm, and show that the intelligent recommendation technology for military information service has a broad application prospect and practical significance.
Rocket assisted take-off of UAV is a type of zero-length launch. According to the requirement of zero-length launch for UAV, the launcher with rocket booster is designed according to the technical requirements. The launcher adopted single rocket includes angle booster and designes to lodging type. According to the combination of UAV and rocket booster, the aerodynamic force is modified. The effect of the change of centre of gravity of combination during launching is considered. Through the force analysis is carried out on the launch process, the dynamic model is built. The influence of booster rocket installation deviation to the performance of taking off is analysed. Using the simulation method and combining with the engineering practice, the launch parameters is designed. The flying date shows that this system meet requirements and the system works in a good state.
The paper describes the advantage and key technology in cooperative control air-defense, and takes semi-active guidance weapon using in cooperative air-defense combattle for example, studies the possibility of testing and verifying for warship group cooperative control air-defense by the flight check test on the sea. The result shows that the method is effective.
High-precision Fiber Optic Gyroscope (FOG) uses over-modulation technology to reduction the noise, which will influence its ability to response to angle acceleration. Firstly, based on dynamic mathematical model of closed-loop FOG, the saturation output phenomenon of FOG under the condition of large angle acceleration is analyzed. Theoretical deduce critical angular velocity of FOG saturation output. Finally, by means of dynamic testing method of FOG angle acceleration response capability, FOG angle acceleration and saturation angle acceleration are obtained. Experiment shows that different FOG angle acceleration and saturation angle acceleration have consistency.
In order to meet the needs of the miss distance analysis in antiaircraft gun shooting, this article proposes a ballistic reconstruction method based on firing table, where the 3-D flight trajectory of the projectile is reconstructed by using the table data in term of shooting angle and flight time. Then, taking the firing table of antiaircraft gun of CASS as an example, the results of ballistic reconstruction are used in simulation to analyze the miss distance and hit probability of the shooting. Because this ballistic reconstruction method can describe the encounter process between the projectile and the target objectively and accurately, a feasible algorithm for calculating the miss distance is derived, which could be applied as a practical tool in the study and analysis of antiaircraft artillery shooting precision.
